NASA
Nasa: Simulating the Low Gravity Conditions of Space in the Lab
This video segment shows different equipment used to study microgravity. This video demonstrates equipment such as drop tower, research aircraft, and a rocket. [0:44]
Khan Academy
Khan Academy: Centripetal Force Problem Solving
In this video, David from Khan Academy gives some problem solving strategies for centripetal force problems and explains many common misconceptions people have about centripetal forces. [14:59]
Khan Academy
Khan Academy: Would a Brick or Feather Fall Faster?
What would fall faster on the moon, a brick, or a feather? Sal Khan answers this question in this video. [10:34]
Sophia Learning
Sophia: Gravitational Force & Newton's Second Law
This lesson explains how gravitational force is related to free fall, acceleration due to gravity, and Newton's second law of motion.
Sophia Learning
Sophia: Gravitational Force & Objects at Rest: Lesson 2
This lesson explains what happens to the gravitational force for an object at rest. It is 2 of 2 in the series titled "Gravitational Force & Objects at Rest."
Sophia Learning
Sophia: Introduction to Gravitational Force: Lesson 2
This lesson introduces the concept of gravitational force and explains how it is experienced. It is 2 of 2 in the series titled "Introduction to Gravitational Force."
Sophia Learning
Sophia: Practice W/ Gravitational Force: Lesson 2
This lesson provides the learner with example problems on calculating gravitational force. It is 2 of 2 in the series titled "Practice w/ Gravitational Force."
Sophia Learning
Sophia: Calculating Gravitational Force: Lesson 2
This lesson demonstrates how to determine the gravitational force acting on an object. It is 2 of 2 in the series titled "Calculating Gravitational Force."
Sophia Learning
Sophia: Calculating Gravitational Force: Lesson 1
This lesson demonstrates how to determine the gravitational force acting on an object. It is 1 of 2 in the series titled "Calculating Gravitational Force." [3:49]
Mocomi & Anibrain Digital Technologies
Mocomi: Wheel and Axle
Learn about this simple machine, and see how it reduces the effort required to move certain objects through this fun and animated learning module.